Pump.



F. NEGLBY.

PUMP.

APPLICATION FILED APR. 28,1909.

@6995MB Patented June 7, 19101 2 SHEETS-SHEET 1.

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PUMP.

APPLICATION FILED APBHZB, 1909.

Patented June 7, 19N.

2 SHEETS-SHEET 2,

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FRANK irneLnY, or ALAMEDA, CALIFORNIA.

PUMP.

Specification ofLetters Patent.

Patented J une *7, 1910.

To all :whom it may concern: v

Be 1t known that I, FRANK NEGLEY, a

citizen of the Unitedv States, residing atv ton operating mechanism whereby the necessary reciprocatory movements may be positively and directly applied to the same'.

n carrying out the object of the invention generally stated above it will, of course, be readily'understood that the essential features thereof are susceptible of wide variations of details and structural arrangements, one practical example of which is shown in the accompanying drawings, wherein Figure 1 is a central vertical sectional View of an opposed cylinder pump equipped with the present invention. Fig. 2 is a transversepsectional view taken on the'line 2 2, Fig. 1. Fig. 3 is a detail view of the shaft and gearv for applying power to the piston operating mechanism.

Referring to said drawings by numerals, 1 designates a pump casing, the ends of which are provided with an annular row of'pumping cylinders-2 3, which are arranged in opposed relation, the central portion 4 of the casing being of such shape and size to permit of the operation of the piston operating mechanism therein, as will presently appear. The rear ends of the pumping cylinders 2 3 are closed by the end walls of the pump casing l, the other ends of the cylinders being closedby the shouldered caps 5 which are recessed as indicated at G for the reception of packing material 7, forming a packing or stuing box through which the piston rods 8 reciprocate. The packin r 7 is retained in the packing or stuffing box ymeans of the cap 9. The ends of the piston rods within their respective cylinders are provided with the usual heads 8. The ends of the piston rods which pro- ]ect eXteriorly of their cylinders are connected to the piston rods directly op osite by means of links 10, and keys 11, the intermedlate portion of each link being provided with a central clearance space and oppositely disposed side recesses 12 through each of which a shaft 13 passes and which holds a pulley or antifriction roller 14 within each recess 12, said antifriction roller being provided with a V-shaped periphery, as indicated at 15. Y

A main shaft 16 extends centrally through the portion 4 of the pump casing and has its ends mounted in bearings 17. A gear wheel 18 which may be integral with its hub or sleeve 19 is mounted on the shaft 16 between and in the end bearings or hangers 17, said gear wheel being obliquely disposed relative to its hub or sleeve so that when rotating it will gyrate. The side edges `of the rim of the gear wheel 18 carry outstanding substantially V-shaped flanges or ribs 2O which engage with the V-shaped grooves of the oppositely disposed antifriction rollers 14 of each link 10, as is shown more clearly in Fig. 1 of the accompanying drawings.

A power shaft 21 is mounted in end bearings 22 at the lower portion of the pump casing 1, one end of said shaft projectingv 21, the gyrating gear 18 will be rotated, and

through its described engagement with the links 10 which connect each oppositely disposed piston rods, impart a reciprocatory movement to said pistons, aswill be readily understood. l

From the foregoing description it will be apparent that as the opposed piston rods are connected, and as such connection is positively engaged by the gyrating gear 18, the movementsI of such gear will be positively and directly communicated to the pistons, thereby assuring of a constant and uniform operation of the pump.

It has not been thought necessary to illustrate in detail the construction of the pump casing in so far as its communication with a source of supply and its valve mechanism are concerned as it will be obvious that the present invention may be applied to any of the usual types of opposed cylinder pumps,

v and rotatable through the clearance spaces of the links, and having a laterally proj eating V-shaped rim engaging the V-shaped grooves 15 of the anti-friction rollers, and a`driving shaft projecting into said casing and having an elongated gear-,wheel meshing with said gyratory gear wheel.

In testimony whereof I hereunto aix my 20 signature in presence of two witnesses.

FRANK NEGLEY.

Witnesses JOHN ARMSTRONG, H. C. SCHROEDER.

"will 

